— Air quality in our city is becoming worse and worse.—Yes. These days' PM2.5 readings are frightening. We must do something to _____

— Air quality in our city is becoming worse and worse.—Yes. These days' PM2.5 readings are frightening. We must do something to ______air pollution.

#55017

reduce

remove

collect

gather

推荐题目

Let me just ____ this and then I’ll go swimming with you.

#55049

finish

to finish

finishing

finished

—What would you like ____?—A glass of water, please.

#55186

drink

have

to drink

to eat

Before the police         , the alien left the shop .

#58846

got

reached

arrived

arrived at

Mother asks me _________ computer games before finishing my homework.

#61781

not play

to play

to not play

not to play

There is going to ______ a football match tomorrow evening.

#59992

have

take

make

共5907题